If it's got any or all of its own language, currency or border controls then I probably consider it a country. And if I've spent money there, spent a night there, or at least walked on the territory, then I probably consider that I've been there. So everything from a few hours crossing the breakaway Republic of Transdnistria to four years living in Chile counts. Here is how the world looks from my perspective:
The map also includes my dubious claims of having been to Singapore, Thailand, Uganda, Zimbabwe and Egypt on the basis of airport stops, and Mozambique by virtue of spending a few hours in the Mozambican part of Lake Malawi, en route to and from Chizumulu and Likoma islands.
I think my top ten places that I want to go to would be: